This OEM Mopar 68188401AA Relay Switch is used on the 1994 to 2002 Dodge Ram Cummins 5.9L diesel engines for the air intake heater grid relay. READ MORE >>

1994 to 2002 Dodge 5.9L Cummins Diesel Air Intake Heater Grid Relay

KLM Performance offers this part as a Brand New OEM Mopar replacement heater grid intake relay for the complete repair of your poor start condition.

Mopar 68188401AA relay applications:

1994 to 1998 Cummins 5.9L 12 Valve diesel engines.

1998.5 to 2002 Cummins 5.9L 24 Valve diesel engines.

The Cummins 5.9L 12V and 24V diesel engines do not use glow plugs during the cold startup process. This Cummins engine is equipped with a relay that is used to activate the heater grid which is located directly between the air horn and intake manifold. The heater grid heats the incoming air during startup to ensure a quick start in cold weather.